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ALPINE PLANTS

For those who putter in a garden filled with annuals and perennials, wandering into the world of rock gardening is like comparing a stroll in the park to a hike in the mountains. While common names like foxglove or forget-me-not may be everyday vocabulary to gardeners, the dedicated rock gardener employs lists of botanical terms, making the transition somewhat confusing. Given time and practice, you too will learn these terms.

Alpines grow in areas ordinary perennials would not. Over time, alpines have evolved to enjoy the fleeting summers of the mountains along with the sharp drainage the rocks provide. Alpines extend the season on both ends. Grown for their foliage, these little cushions make wonderful architectural structures.

The 2010 ALPINE INVENTORY is listed below.

For information on conifers for troughs and rock gardens, please click the Troughs/Pottery tab.



Note - Alpines that have pictures will be written in dark green and underlined.Click on the name of the alpine to view the picture.

Androsace carnea
This early and free flowering species originates in the Alps and Pyrenees. It is said to be one of the easiest Androsace to grow. Clusters of dainty, rose pink flowers bloom in spring on 3-5" stems with elongated, pointy, grayish green tufts. Rhizomatous. Zone 4

Androsace lanuginosa (Rock Jasmine)
Alpines and Rock Gardens, Perennials
A summer-flowering, trailing species, with evergreen, fuzzy-textured leaves and umbels of pale pink flowers. 3-4". Full Sun to Partial Shade Zone 4
Mature size: 6" x 12-15 in. Average Water Needs: Water regularly; do not overwater.

Androsace studiosorum
Clusters of dainty, bright pink flowers bloom on short, fuzzy, red stems rising above tight rosettes of small, fuzzy green leaves. Grows 4" tall and 10" wide. Spreads by runners resulting in an attractive mat of rosettes. Zone 4

Androsace villosa
Masses of white or pinkish flowers with yellow centers bloom June-July on tight rosettes of dark green foliage with tiny silverfish hairs. Flowers have an appealing, slightly sweet scent. Native to the higher alpine regions of Europe and Asia known to have a lot of limestone. Grows just 2" tall. Zone 3

Androsace x Millstream
Tight cushions of tiny glossy green rosettes studded in spring to early summer with sweet little pink, sometimes white, single flwers. ½" x 3"

Anemone multifida v. globosa
Perennials
Bright rosy red flowers emerge late spring to early summer. Full Sun Zone 3 Mature size: 6 in. x 9-12 in. Drought-tolerant; suitable for xeriscaping

Antennaria dioica 'Rubra'
Spreading, mat-forming, semi-evergreen plant with gray-green spoon-shaped leaves. Wine red flowers bloom in late spring to early summer. Grows 3-4" tall. Zone 5

Antennaria 'McClintock' (Pussytoes)
Groundcovers
This Pussytoes groundcover is a very hardy, extremely low growing (only reaching 2 inches tall) dwarf variety. The tiny Wyoming native has evergreen leaves and stems that inch slowly over rocks and ground to form a miniature gray carpet. "McClintock" produces very few flowers and keeps its tidy look year-round. It can be used like Thyme to plant between flagstone and pavers or under pines to cover ground in dry partial shade. Evergreen foliage! 'McClintock' is very dependable and drought tolerant. 2 inches tall, Average to sandy soil, Full sun to part shade, Zone 4

Antennaria neglecta var. gaspensis
Tiny 2" gray carpets which flower pink in spring. Needs good drainage. Zone 3

Arabis 'Pixie Cream' (Rockcress)
A change from the pink and white older forms, 'Pixie Cream' has cream-colored flowers with a golden yellow eye. Compact habit, growing to 4" tall. Blends easily with other plants and tones down sharp colors. Great in the rock garden as well as the front of the garden border. Zone 3

Arabis fer-cobergii 'Limedrop'
Attractive mounds of deep green leaves with lime-chartreuse centers. Grows 4-6" tall. Native to Bulgaria. Zone 4

Arabis fer-cobergii 'Old Gold'
A colorful, 2-3" alpine with yellow variegation instead of the usual white. Creeping, but not invasive. Sprays of small, white flowers appear April-May. Zone 3

Arabis fer-cobergii 'Variegata'
Flat, green and white mats, with 4-5" tall, white umbels in spring. Zone 3

Arenaria - acerosa
From Anatolia. Extremely desirable. Tuffets of fine grey leaves and large white flowers of solid substance on short stems.

Arenaria balearica
Tiny bright green leaves form a mat with myriads of tiny, white flowers dancing on thread-like 1" stems. Tolerates sun but grows best in light shade and cool sites. Zone 4

Arenaria montana
This adorable alpine bears grassy, mat-like foliage with tiny white, cup flowers blooming on 4-6" stems in June. Zone 3

Arenaria 'Wallowa Mtn' (Sandwort)
Alpine and Rock Garden
Tight rich-green cushions with tiny white flowers. An intriguing Oregon native. 2" x 12", Needs good drainage, Full sun to partial shade, Zone 5

Armeria juniperfolia 'Alba'
This diminutive, 2" alpine thrift has compact, gray-green tufts covered with tiny buttonballs of white flowers in spring. Zone 3

Armeria juniperfolia 'Bevan's Variety'
A much loved alpine thrift. Virtually stemless, globular pink flower heads appear on 3-5" dark green, grassy mounds in early summer. Zone 3

Armeria juniperfolia 'Rosa Stolz'
Tiny, grass-like tussocks of dark, evergreen foliage bear myriads of pastel lavender, button flowers on 3" stems late in the spring to early summer and often again in fall. Zone 3

Asperula gussonii (Woodruff)
Perfectly formed, dome-like, 2" cushions of emerald green leaves are covered with long, stemless, tubular pink flowers in late spring. Zone 3

Asperula pontica
Similar to A. gussonii but with a more mat-forming habit. Masses of tubular, vivid pink flowers bloom June - July over a dense cushion of rich green needle-like foliage. Grows 3-4" tall. Native to the mountains of Iraq and Turkey.

Aster alpinus
Alpines and Rock Gardens, Perennials Bloom color - violet/lavender. Blooms in late spring/early summer or occasionally, midsummer. It is herbaceous and attractive to bees, butterflies, and/or birds. Does better in generally cooler climates. Size: 4-8 in. x 15-18 in., Sun to Partial Shade, Zone 3

Aubrieta 'Argenteovariegata' (Purple Rockcress)
2-4" mat-forming evergreen with creamy white, variegated foliage and intense blue flowers in spring. Zone 3

Aubrieta 'Dr. Mules'
Magenta-purple flowers look radiant April- May as they bloom in masses over attractive, medium green, mounding foliage. Grows 3-4" tall. Semi-evergreen. Zone 5

Azorella trifurcata minima
2" compact, creeping plant that forms hard mats of glossy green rosettes that follow every contour of the surface it grows over. Insignificant pale creamy-yellow blooms appear in May - June. Zone 3

Bolax glebaria (Plastic Plant)
Alpine and Rock Gardens, Groundcovers
Looks like the commercial plastic turfgrass. Small, shiny, dark green, downward curving leaves set in congested rosettes. An evergreen perennial from the Falkland Islands, Astroturf loves warm weather but is hardy to Zone 4. Perfect for rock gardens, mini meadows, all season ground cover or as Bonsai companion plant.
Mature size: 1" Full sun to part shade. Well drained soil with some grit, fine gravel or sand mixed in and a slightly alkaline PH.

Carex caryophyllea 'Beatlemania' (Mop-headed grass)
A garden sport recently introduced by Alan Tower, with a mop head appearance similar to that of the Beatles. Soft narrow dark green arching leaves are edged with gold. 6" x 24 Part shade

Campanula belidifolia
Vibrant violet-blue star-shaped blooms in spring over dense little tufts of daisy-leaved foliage. 3" x 5". Caucasus

Campanula cochlearifolia 'Elizabeth Oliver'
A great choice for the rock garden! Nodding, pale periwinkle double flowers bloom July - September over mat-forming foliage with small, rounded leaves. It spreads but does not reseed like the species. Grows to 4" tall. Zone 4

Campanula trogerae
Large waxy ivory stars emerge from soft pink buds in midsummer over mounds of attractive gray-green foliage. 3" x 6". A choice Turkish beauty.

Campanula waldsteiniana
An array of solitary lilac-violet, upturned stars cover superb dwarf cushions. A gem and quite hardy. 6" x 8" Croatia, in limestone crevices.

Cotula minor (Brass Buttons)
Flat, 1" mats of miniature, ferny foliage with little yellow button flowers in summer. Native of New Zealand and rather rare in cultivation. Zone 4

Cymbalaria muralis 'Alba Compacta' (Pennywort)
Diminutive, compact ½" white flowered form with an extended summer bloomtime. Great for rock gardens or troughs. Grows to 4" tall. Zone 5

Delosperma basuticum (Hardy Ice Plant)
Alpines and Rock Gardens, Cactus and Succulents
Amazingly drought tolerant these little mesembs will tolerate hot and dry sites that would fry most other plants and still flower like mad. Many are surprisingly cold tolerant although they do tend to melt in wet spring weather. Delosperma will also self-sow in the garden and any surviving scraps quickly grow back to form a good-sized plant in a single season. Yellow flower with white eye. 1" x 12-15" Full Sun to part shade. Slightly alkaline soil. Zone 5

Dianthus petraeus subsp. noeanus
Alpines, Perennials
Midsummer - intensely fragrant, snow white, frilly flowers with toothed petals, borne singly on upright stems. It makes mats of narrow, pointed, rather stiff leaves, green, but slightly glaucous. Zone 4 (5), Mature size: 6" x 10", Full sun to part shade

Draba aizoides
2-4" tall with basal rosettes that form a nice central mound. Umbels of ¼" yellow flowers late winter to mid-spring. Zone 3

Draba alpina v. glacialis (Alpine Rockcress Draba)
Alpines, Rock Gardens
Bright yellow flowers over tightly packed mounds of hairy rosettes. Norway, Russia
Mature size: 3-4", Full sun

Draba brunifolia
Slender-leafed rosettes build slowly to form tight low mats and bear masses of bright yellow blooms in spring. Caucasus to Turkey 3" x 12" Sun/part sun Excellent trough plant

Draba dedeana
Alpines, Rock Gardens
Dense cushions of tightly stacked deep green rosettes adorned in spring with a crown of short-stemmed white jewels. Spain, in moist shady places. Size: 3" x 4", Full sun

Draba olympica
A green, stiff, bristly, low ground cover for rockery and walls. Bright yellow blooms March - April. Mounding to 4" tall. Zone 4, Full to part sun, Semi-moist well drained soil

Draba rigida
This Draba makes a dense cushion of tiny rosettes with clusters of yellow flowers on 2-3" stems. We have found this to be quite hardy in the open rock garden. Requires a very well drained soil in full sun. 3"h x 4", Zone 4

Draba oligosperma
Sorry, no information on this one!

Draba rosularis
Originally from the cliffs in Kurdistan, this small alpine forms tiny gray buns, 4" x 2" with yellow flowers blooming April to May. A great addition to any rock garden. Zone 5

Draba yunnanensis
An alpine that also suites the front border, its foliage forms a nice wooly mat of gray, fuzzy leaves. Yellow flowers bloom spring to early summer. Zone 3

Dryas octopetala (Mountain Avens)
Alpine, Rock Gardens, Ground covers
Mats of dark green scalloped oval leaves with a white hairy reverse and creamy white solitary flowers centered with a tuft of golden stamens followed by attractive long-plumed seedheads. It is a small prostrate evergreen subshrub forming large colonies, and is a popular flower in rock gardens.

The specific epithet octopetala derives from the Greek octo (eight) and petalon (petal), referring to the eight petals of the flower, an unusual number in the Rosaceae, where five is the normal number. However flowers with up to 16 petals also occur naturally.

Dryas octopetala has a widespread occurrence throughout mountainous areas where it is generally restricted to limestone outcrops. Plant grows about 3" tall and slowly spreads. Flowers and seedheads are held about 6 to 10 inches above the foliage. Low to moderate moisture; needs good drainage. Full sun, Zone 1

Edrianthus tenuifolis (Grassy Bells)
4" grassy mounds with pretty, upturned, violet-blue bellflowers blooming from July - August. An easy to grow plant for the rock garden. Zone 4

Erigeron compositus 'Pink'
Perennial, Rock Gardens
Pale lavender daisies on short stems nearly hide the nice compact cushions of dark green leaves. Zone 3, Size: 2" x 5", Full sun

Erigeron scopalinus
Groundcover, Rock Gardens, Alpines
A small, creeping evergreen species for a moist soil, covered by a drift of white daisies in spring.
1" x 10", Zone 4

Gentiana acaulis
Intense deep blue trumpets on glossy green rosettes in spring-early summer. 3" x 12" Wow! Europe.

Gentiana parryi x septemfida
Alpines, Rock Gardens
An essential gentian for the rock garden with clumps of glossy green leaves on arching stems with terminal clusters of bright blue flowers in summer. Asia. 8" x 12", Full to part sun, Zone 3

Heuchera pulchella
One of the tiniest Heucheras. Very neat, tidy habit growing just 4" tall. Pink flowers in June. Makes a great trough plant! Zone 3

Heuchera rubescens 'Troy Boy'
This diminutive coral bell is perfect for a rock garden or the front of the border. Tiny, pale pink flowers, tipped with green , bloom in spring. The compact foliage stays tidy with bright green, rounded leaves all season long. Grows to 5". Zone 5

Hymenoxys acaulis
Bright yellow daisies are held just above mats of silky-gray foliage in late spring to summer. Alpine form, Choice! Central Canada south to NV, CO and TX, on dry rocky slopes and mesas. 2" x 6" Full sun Excellent trough plant Native to Colorado

Iberis saxatilis (Candytuft)
3" tight cushion with white blossoms April - May. Makes a good rock garden plant. Zone 3

Leptinella squalida
1-2" mats of attractive, deeply cut, fern-like foliage. An alpine used as a groundcover for the sunny rock garden or between sidewalk cracks. In summer, tiny whimsical yellow-green flowers appear. Zone 5

Leptinella squalida 'Platt's Black'
Flat 1-2" mats of deeply cut, fern-like foliage that, if grown in sun, holds a deep purple -near black, color all summer . Excellent groundcover. Zone 5

Minuartia stellaria 'Frank Cabot' (Sandwort)
A cute little alpine plant which forms tight mats of grassy green leaves. Great addition for any rock garden. Zone 4

Orostachys furusei
This interesting perennial forms succulent gray rosettes. Low growing to a height of 4". Zone 4

Orostachys spinosa (Dunce Caps)
Troughs, Rock Gardens, Alpines
Low globose gray-green rosettes have a fascinating symmetry. Small insignificant yellow flowers are produced after about 5 years when centers swell into upside down cones. Siberia, Asia. 1" x 4", Full sun, Zone 5

Othonna capensis 'Little Pickles'
Being tiny doesn't stop this 2" succulent plant from getting noticed. Everyone loves it! A new ice plant with "pickle-shaped" leaves and lots of yellow flowers held well above the foliage in summer. Zone 5

Primula allionii 'Lismore Treasure'
A spectacular plant, very compact rosettes with intense glowing violet purple flowers. Very choice. 1" x 2"

Rosularia rosulata (Sempervivella) Loose, "rose-like" clusters of bright green, spatulate leaves, with white flowers blooming in summer. Grows 2-4" tall. Zone 5 Rosularia sedoides 'Alba'
Little green, pink-flushed rosettes are adorned with short sprays of substantial white flowers in early summer. Zone 5

Rosularia sempervivum ssp. Glaucophylla
This form has cream flowers and succulent rosettes of glaucous leaves. Looks very different than the species. Grows 4-5" tall and 7" wide. Zone 5

Rushcia (South African Mesembs)
Silvery blue, gnarly, pointed leaves. The epitome of a rock garden specimen. Unusual and special! Zone 5

Saxifraga coclearis 'Minor' 4" long scapes of diminutive, star-shaped white flowers rise above compact, lime-encrusted rosettes in June. At maturity 6" wide. Zone 3

Saxifraga irvingii 'Jenkensae'
Abundant single blushing-pink flowers adorn tight buns of small gray-green rosettes in spring. It's a cutie! ½" x 3".

Saxifraga kinlayi
Silvery, lime-encrusted, 1" wide, matted rosettes with a profusion of tiny white flowers in spring. Zone 3

Saxifraga paniculata 'Cockscomb'
Unique variety with unusual characteristics. The rosettes are a soft gray-green with raised, encrusted centers that are marked with a silver streak up each leaf-rib. Zone 3

Saxifraga paniculata 'Millstream'
Groundcover, Rock Garden, Alpines
Mats of gray-green minute rosettes decorated with a blizzard of white flowers in spring. One of the tiniest saxafragas. 1/2" x 6", Full sun to Part shade, Zone 5

Saxifraga paniculata minutifolia 'Red Backed'
Mats of gray-green minute rosettes decorated with a blizzard of white flowers in spring. Undersides of leaves are red. One of the tiniest saxafragas. ½" x 6"

Saxifraga 'Teckles'
One of the best silvers and in high demand, with striking sprays of white flowers with bright red spots. 2" x 6"

Saxifraga 'Winifred Bevington'
Rosettes of tiny green leaves and plenty of white flowers with pink spots. 5" x 5"

Saxifraga x zimmeteri
A natural hybrid between S. paniculata and S. cuneifolia, this cute little saxifrage from Austria has flattish glossy dark green rosettes that are margined in gray-silver and bear sprays of starry white flowers in spring. 3" x 8"

Schivereckia podolica
4-6" dense carpet with white flowers blooming March - April. Zone 3

Sedum album 'Chloroticum'
Ground Cover, Rock Gardens, Alpines
Very pale green leaves, decorative miniature foliage, white flowers. 3" x 12", Full sun, Zone 4

Sedum album 'Murale'
Ground cover, Rock Garden, Alpines
Very light pink flowers on a selection known for its red foliage during periods of cold or stress.
4" x 12", Full sun, Zone 5

Sempervivum - too many to list!

Silene acaulis 'Heidi'
Soft green cushions have very fine textured foliage that is sprinkled with rose-pink flowers in early summer. From the Swiss alps. 1" x 8"

Silene acaulis 'Mt. Snowdon'
Mossy looking, mat-forming groundcover with 8-10" slender stems of deep pink to purple flowers in early spring. Zone 3

Silene acaulis sssp. Acaulis
Wide mats of congested shoots clothed in small bright green leaves. Bright pink flowers are almost stemless. May - June. Grows 4" tall. Zone 3

Silene uniflora 'Compacta'
Floriferous, light pink blossoms over gray-green foliage July - August. Compact cushions only 4" tall. Zone 4

Silene uniflora 'Druett's Variegated'
Tiny oval leaves have distinct white margins. Attractive 1" white flowers resemble those of its close relative, the carnation, in late spring and summer. Grows 2-3". Zone 3

Thymus praecox 'Doretta Klaber'
One of the tightest forms. Small, fuzzy leaves form a 2" x 12" mat with dark pink flowers blooming May - June. Zone 3

Thymus 'Elfin'
This diminuitive slowgrowing groundhugger adorns itself in summer with pretty pink-lavender flowers over tight tiny mats of glossy green foliage that changes to a striking deep purple in fall. A real cutie! ½" x 12" Full/part sun Excellent trough plant

Thymus praecox 'Highland Cream'
Aromatic, green and gold variegated foliage with pale pink flowers blooming in summer. Prostrate grower. Drought tolerant. Zone 3

Thymus praecox 'Minor'
Flattest, tightest and lowest form of creeping thyme.. Excellent for rock gardens and between flagstones. Zone 3

Thymus praecox 'Roseum'
Dense, dark green mats with light pink flowers. Grows just 2" tall, making it a great groundcover or filler for a stone walkway. Zone 3

Thymus quinquecostatus ibukiensis
A showy, Japanese native thyme with low mats, covered with abundant pink flowers. Grows just 2-4" tall with a 12" spread. Zone 4

Thymus quinquecostatus ibukiensis 'Alba'
A native of Japan, this thyme is one of the showiest. Low mats are covered with abundant white flowers. Zone 4

Townsendia incana
Pretty soft pink daisies with a violet reverse bloom nonstop all summer over compact mounds of softly felted gray leaves. N America. 2" x 4" Full sun Excellent trough plant

Townsendia mensana
Dense rosettes of silver-gray are embedded with pale pink flowers in spring. UT. 1" x 3" Full sun Excellent trough plant Good for dry areas

Veronica pectinata
Velvety foliage forms dense mats of gray leaves. Saucer-shaped white-eyed deep blue flowers in summer. Grows to 3". Zone 3

Veronica prostrata 'Heavenly Blue'
4-5" emerald green carpet with brilliant blue flowers in May. Zone 3

Veronica spicata nana 'Blauteppich'
Bright indigo blue flowers in summer over 4-6" mats. Compact grower. Zone 3

Viola cornuta 'Baby Franjo'
A diminutive charmer! 4" dense tufts are smothered with pretty, light yellow, slightly fragrant flowers in spring. A vigorous grower for the border front, edging or woodland garden. Zone 4

Viola cornuta 'Baby Lucia'
Miniature growing to 4" with sky blue flowers. A heavy bloomer. Zone 4

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